<script setup>
import { Edit, Delete } from "@element-plus/icons-vue";

import { ref } from "vue";
const title = ref('');

//文章分类数据模型
const categorys = ref([]);

//用户搜索时选中的分类id
const categoryId = ref("");

//用户搜索时选中的发布状态
const state = ref("");

//文章列表数据模型
const articles = ref([]);

//分页条数据模型
const pageNum = ref(1); //当前页
const total = ref(20); //总条数
const pageSize = ref(5); //每页条数

//当每页条数发生了变化，调用此函数
const onSizeChange = (size) => {
  pageSize.value = size;
  articleList();
};
//当前页码发生变化，调用此函数
const onCurrentChange = (num) => {
  pageNum.value = num;
  articleList();
};

//导入调用接口获得文章分类的函数
import {
  articleCategoryAllListService,
  articleListService,
  articleAddService,
  articleUpdateService,
  articleDeleteService,
} from "@/api/article.js";
//import { articleCategoryListService } from '@/api/editor.js'
import { ElMessage, ElMessageBox } from "element-plus";
//获取分类列表
const articleCategoryList = async () => {
  let result = await articleCategoryAllListService();
  categorys.value = result.data;
};
articleCategoryList();
//获取文章列表
const articleList = async () => {
  let params = {
    pageNum: pageNum.value,
    pageSize: pageSize.value,
    categoryId: categoryId.value ? categoryId.value : null,
    state: state.value ? state.value : null,
  };
  let result = await articleListService(params);
  total.value = result.data.total;
  articles.value = result.data.items;
  for (let i = 0; i < articles.value.length; i++) {
    let article = articles.value[i];
    for (let j = 0; j < categorys.value.length; j++) {
      if (article.categoryId == categorys.value[j].id) {
        article.categoryName = categorys.value[j].categoryName;
      }
    }
  }
};
articleList();

//文章添加
const addArticle = async (clickState) =>{
    articleModel.value.state = clickState;
    let result = await articleAddService(articleModel.value);
    ElMessage.success(result.data ? result.data : '文章添加成功')
    visibleDrawer.value = false;
    articleList();
}

//文章修改，数据回显
const showDrawer = (row) => {
    visibleDrawer.value = true
    title.value = '修改文章'
    articleModel.value.id = row.id
    articleModel.value.title = row.title
    articleModel.value.categoryId = row.categoryId
    articleModel.value.coverImg = row.coverImg
    articleModel.value.content = row.content
    articleModel.value.state = row.state 
} 

const updateArticle = async(clickState) =>{
    articleModel.value.state = clickState;
    articleModel.value.checkState = "未审核";
    let result = await articleUpdateService(articleModel.value);
    ElMessage.success(result.data ? result.data : '更新文章成功');
    visibleDrawer.value = false;
    articleList();
}

//清空数据模型
const clearArticleModel = () =>{
    articleModel.value.title = ''
    articleModel.value.categoryId = ''
    articleModel.value.coverImg = ''
    articleModel.value.content = ''
    articleModel.value.state = ''
}

//导入富文本编辑器地组件和样式
import { QuillEditor } from "@vueup/vue-quill";
import "@vueup/vue-quill/dist/vue-quill.snow.css";

import { Plus } from "@element-plus/icons-vue";
//控制抽屉是否显示
const visibleDrawer = ref(false);
//添加表单数据模型
const articleModel = ref({
  title: "",
  categoryId: "",
  coverImg: "",
  content: "",
  state: "",
});

import { useTokenStore } from "@/stores/token";
const tokenStore = useTokenStore();
//上传成功回调函数
const uploadSuccess = (result)=>{
    articleModel.value.coverImg = result.data;
    console.log(result.data);

}


const deleteArticle = (row) =>{
  ElMessageBox.confirm(
    '确认删除该文章吗？',
    '温馨提示',
    {
      confirmButtonText: '确认',
      cancelButtonText: '取消',
      type: 'warning',
    }
  )
    .then(async() => {
        let result = await articleDeleteService(row.id);
        ElMessage({
            type: 'success',
            message: '删除成功',
        })
        articleList();
    })
    .catch(() => {
        ElMessage({
            type: 'info',
            message: '删除取消',
        })
    })
    dialogVisible.value = false;
    getAllArticle();
}

</script>
<template>
  <el-card class="page-container">
    <template #header>
      <div class="header">
        <span>文章管理</span>
        <div class="extra">
          <el-button type="primary" @click="visibleDrawer = true;title = '添加文章';clearArticleModel()"
            >添加文章</el-button
          >
        </div>
      </div>
    </template>
    <!-- 搜索表单 -->
    <el-form inline>
      <el-form-item label="文章分类：">
        <el-select placeholder="请选择" v-model="categoryId">
          <el-option
            v-for="c in categorys"
            :key="c.id"
            :label="c.categoryName"
            :value="c.id"
          >
          </el-option>
        </el-select>
      </el-form-item>

      <el-form-item label="发布状态：">
        <el-select placeholder="请选择" v-model="state">
          <el-option label="已发布" value="已发布"></el-option>
          <el-option label="草稿" value="草稿"></el-option>
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="articleList()">搜索</el-button>
        <el-button
          @click="
            categoryId = '';
            state = '';
            articleList();
          "
          >重置</el-button
        >
      </el-form-item>
    </el-form>
    <!-- 文章列表 -->
    <el-table :data="articles" style="width: 100%">
      <el-table-column
        label="文章标题"
        width="400"
        prop="title"
      ></el-table-column>
      <el-table-column label="分类" prop="categoryName"></el-table-column>
      <el-table-column label="发表时间" prop="createTime"> </el-table-column>
      <el-table-column label="状态" prop="state"></el-table-column>
      <el-table-column label="操作" width="100">
        <template #default="{ row }">
          <el-button :icon="Edit" circle plain type="primary" @click="showDrawer(row)"></el-button>
          <el-button :icon="Delete" circle plain type="danger" @click="deleteArticle(row)"></el-button>
        </template>
      </el-table-column>
      <template #empty>
        <el-empty description="没有数据" />
      </template>
    </el-table>
    <!-- 分页条 -->
    <el-pagination
      v-model:current-page="pageNum"
      v-model:page-size="pageSize"
      :page-sizes="[5, 10, 15, 20]"
      layout="jumper, total, sizes, prev, pager, next"
      background
      :total="total"
      @size-change="onSizeChange"
      @current-change="onCurrentChange"
      style="margin-top: 20px; justify-content: flex-end"
    />
  </el-card>
  <!-- 抽屉 -->
  <el-drawer
    v-model="visibleDrawer"
    :title=title
    direction="rtl"
    size="50%"
  >
    <!-- 添加文章表单 -->
    <el-form :model="articleModel" label-width="100px">
      <el-form-item label="文章标题">
        <el-input
          v-model="articleModel.title"
          placeholder="请输入标题"
        ></el-input>
      </el-form-item>
      <el-form-item label="文章分类">
        <el-select placeholder="请选择" v-model="articleModel.categoryId">
          <el-option
            v-for="c in categorys"
            :key="c.id"
            :label="c.categoryName"
            :value="c.id"
          >
          </el-option>
        </el-select>
      </el-form-item>
      <el-form-item label="文章封面">
        <!-- 
            auto-upload:设置是否自动上传
            action：设置服务器接口路径
            name:设置上传的文件字段名
            headers：设置上传的请求头
            on-success：设置上传成功的回调函数
         -->
        <el-upload
          class="avatar-uploader"
          :auto-upload="true" :show-file-list="false"
          action="/api/upload"
          name="file"
          :headers="{'Authorization':tokenStore.token}"
          :on-success="uploadSuccess"
        >
          <img
            v-if="articleModel.coverImg"
            :src="articleModel.coverImg"
            class="avatar"
          />
          <el-icon v-else class="avatar-uploader-icon">
            <Plus />
          </el-icon>
        </el-upload>
      </el-form-item>
      <el-form-item label="文章内容">
        <div class="editor">
          <quill-editor
            theme="snow"
            v-model:content="articleModel.content"
            contentType="html"
          >
          </quill-editor>
        </div>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" @click="title == '添加文章' ? addArticle('已发布') : updateArticle('已发布')">发布</el-button>
        <el-button type="info" @click="title == '添加文章' ? addArticle('草稿') : updateArticle('草稿')">草稿</el-button>
      </el-form-item>
    </el-form>
  </el-drawer>
</template>

<style lang="scss" scoped>
.page-container {
  min-height: 100%;
  box-sizing: border-box;

  .header {
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
}
/* 抽屉样式 */
.avatar-uploader {
  :deep() {
    .avatar {
      width: 178px;
      height: 178px;
      display: block;
    }

    .el-upload {
      border: 1px dashed var(--el-border-color);
      border-radius: 6px;
      cursor: pointer;
      position: relative;
      overflow: hidden;
      transition: var(--el-transition-duration-fast);
    }

    .el-upload:hover {
      border-color: var(--el-color-primary);
    }

    .el-icon.avatar-uploader-icon {
      font-size: 28px;
      color: #8c939d;
      width: 178px;
      height: 178px;
      text-align: center;
    }
  }
}
.editor {
  width: 100%;
  :deep(.ql-editor) {
    min-height: 200px;
  }
}
</style>